Motor drive for motor-driven conveyances



. E. 1. MULLER MOTOR DRIVE FOR MOTOR DRIVEN CONVBYANCES Filed'uay 26.1923 4 Sheets-Sheet 1 Oct. 21 1924.

1,512,232 E. 1.. MULLER MOTOR DRIVE FOR MOTOR DRIVEN CONVEYANCES FiledMay 26. 1923 4 Sheets-Sheet 2 Oct; 21 q 1924.

u 1,512,232 E. L MULLER MOTOR DRIVE FOR MOTOR DRIVEN CONVEYANCES FiledMay 26. 1923 v 4.Sheet8-8heet 3 Oct. 21

E. L. MULLER MOTOR DRIVE FOR MOTOR DRIVEN CONVEYANCES File d May 26; 4Sheets-Sheet 4 Patented Oct. 21, 1924.

noting,runwreniinrnmorfmumcn, ensuring, 1

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f 'o ual l whm it I The motor foriningthe'subjectof. this in- *Be it"?known'athatwl, LEUGE'N fLUljWIG Miinmni, residing at 236:idenmayer'strasse, Munich; Germany, 2 have invented certain new: anduseful Improvements in:.;Mot'oi Drives "-for Motor-Driven-f Conveyancesof which'.the 1 following is: a'specificatio'n.

- Y agThe invention-relates" in general-to; motor's :for 1 motor drivenconveyances and more particularly to. internal combustion engines whosecylinders-1 and central portion iform the spokes and. hub of a' wheel;Both the crank. shaftraround which the cylinders are arranged and thecylinders Zthemselvesqnay rotate in the same or in opposite-directions.

vention; may be used 'fordriving motor 'drive'n j cars in which: Y themotor I is posi tionedg within the vehicle wvheeli By E placingthemotor' in one of the" wheels thep'o'wer transmitting devicesordinarily' necessaiy for transmitting power from the motor to thewheels are dispensed-with and-"space is thus saved in the body! of thevehicle which may be used for other purposes. Motordrivencycles havingmotors arranged in the"back or front wheel have-already been built. Butthese machinesyinspiteof many advantages, have not as yet been capableof meeting the requirements of a modern power driven cycle because'theycould not be .pro- 'videdwith a starting mechanism, coupling device andspeed change and reversing gear. The obvious idea of providing a-coupling between the slowly revolving" engine casing and the rim of thewheelin which the motor is mounted led to impracticable designs.

The problem to be solved is that, while retaining the :'-fiXedconnection between the 1 cylinders arranged like spokes-in the wheel andthe rim of the wheel, the'engine shall be -ca pable: of executing anytotal number ofrevblhtions--'without moving the. vehicle as long as themotor is uncoupled and'when the motor is coupled it shall be capable ofpropelling the vehicle at different speeds.

A' feature of the-invention= consists in the driving wheelwhich-transmits motion from the crank shaft to the rim of the wheelbeing arranged so that it is normally loose 'on the crank shaft and isonly coupled there- .to so as to drive the speed change and reversinggear when the vehicle: isto be set ;in' motion.1 The valve control gearfor the internal combustion engines drlven by a second-driving wheelpermanently fiigedfon section through air-internal combustion. en,- gmeforming part of a vehicleowheeloor the lik erfl- 7 Figs. e-aniustraiiith tagsi niidetailsj on a smaller scale, .Fig. 2"beingaj side view-5':of ,-the speed change and. reversing gear} .removed fi'om the 1 lefthand chamber of the-casing in Fig.- l;-, Fig.--3a section-ion thelirielII-III of Fig. 2;: 1Fig-41a sec .1;

simplified 0r diagrammatic representation otwian engmexaccordingd-to 1:1

the invention. formingi the ispokes andihub of the front wheel of. .abicycle zorjvmotor driven-vehicle.v I,

:. The! mode: of; operation of the novel drivmg device or: engine can beexplained imojst K r simply Wltllithfi 3;l(l;0f Fig. 6;"; 5 :1 v Inthisfigure the cylinderskl .arerligidly connectedito the felloe 0rZrim.---Fr0m- ,th:is figure it is'apparent that if the motor. is-to run whilethe:w'hee'l iswstationary,:thewylinders will" have to remain stationary;While the crankshaft'E'revolvesd Under thesel-circumstances whichcorrespond to, the no load operating condition of the engine theerankshaft 3 exerts no force onthe casing 13 because i the toothed wheel 'orpinion 1 l3 7; is mounted loosely on the crank shaft-3.1 F or-thepurposes of the following; description itwill be assumed that' the crankshaft revolves counter -clo'ckwise at aespeedwof 3600 revolutions.perminute; although of courseithe speed .could be regulated in widelimitsbiy adjusting the carburettor: On this assumption the enginecasing, and-the wheel fconnected to it by the cylinders, would exeshaftspeed Tate of the-vehicle. It will be supposed further that the vehicleshall move in ,the direction indicated by the arrow at the right of thewheel. The rotation of the en-ginaeasinga and thereiorethe turn; m g ofthe -wheel inth desired" ilire'ction, is

brought about by the driving wheell9,--- which is yplqoe en.the-creekSheik 3, being firmly coupled thereto so that it transmits motion.theashait. 3 through the pinions 21 and 27 to the circle of internalteeth 29 fixed to-=-the- -casi'ngwl3 'ofithe itscyliliders will revclveclockwi "se at a speed of 200 revolutions and henc'e the 's of'theGra'nk -shaft relative1y td the ed pivot-'23 or -to ithe-engine casing Ewill be 3600 200i3400:

The general operation of the wheel' engine having tlnistbeen explained;{the operations of the details of I the engine shown in I Figs.

1- 5twi1'1ncw be describedeaeln these figures 1- iienotes'the cylinders'whosepistons act through coniieotnig teas cn'ithe cnank 3.

The yalvesi in'ot tews of th ngine are contro1led hy 'camsi4: 'inbuntedon a ring 9 provided with i'nternal circle: *of teeth which is rotatedwith the aid of toothed wheels7 'and 8 whicliare in mesh witheachothers- *Thef wheel 7 is keyed -to the crank shaft as shownin Figw'5' so'to always-"rotabs with it; fi is the high'-'tens'ion electric currentdistributor, and 6 a chinnher adapt ed to receive 1 theourrentririterruptor- (not shown) 4 1'0: and ll are two hallbearingsonwhich are jouriialle'd thd p'arts by which the internal combustionprocesses 'in the cylinders are controlled, these parts comprising thering 9 with'itsinternal} teeth and the external-camse; and the hightension distriloutor 5 and the interrupter,-=and being-enclosed inthecasing 132- The *high' tension currents are conducted to thedistributor by the conductor 12. The parts of the vehicle which arefixed relatively to its frame and in which the'shaft'23. (see also :Fig.6) is joumalled arerecognizable in- Figs. 1-4 by their being-crosshatched. 1 These=fixed parts are the forkends 14-.Iand15 and the fixedmember 'l6ewhich is keyed to the end of the fork:15..-The engine casing13' which revolves round the=fixed member 16is journ'alled at theball'bearin-gs 1-7 :and '18..

Loosely-mounted on 'theacrank shaft is the toothed-wheell9. At itsinternal end the crank shaft oarries'or is formed with. a flangeprovided with recesses :in which there is a spring 40that;normallyipresses-a longitudinally- .movable idlSki towardsthe .leitin Fig. l. Byimeans-of ahandle-or :lever 32 provided at its pivot-iwithhscrew that fits in an internal thread in. the fixed or cross hatchedmember, a pin: 41- which extends through'the-central-hore of thecrankshaft may be moved inwardly (to the right) or :to-the said rim.-

qutwanj-lyse'that th spring; pressed disk is caused' tomncouple (orcouple) the crank shaft from (or to) the disk 20 and hence to the wheel.19.,T-he flange at the right end of the orank shafitalso operates as aflying whe It will be assumed that the toothed wheel 19 is coupled-tothe crank shaft and that the lowest speed of the speed change gear isthrown on. The wheel 19 which is in mesh with the wheel 21.wi11 thenrotate the latter which is revoluhlmountedio'n the shaft v23 thatvisjournalle .in thefixed member 16.

The: gear wheel 21- will: be in engagement 1'- through theliclutch26':withthe wheel 27 that iskeyed to the-shaft 23 and=meshes with theinternalteeth 29 :formedlin-the casing :13. -=.By means. of.- a cam disk'25 :adapteddo :be rotated by ai1levfery33the various cou .pling iwheelssuch-as 21-,-.22-.can.be moved -1Ii succession towards-the :right;thatwis into engagement with a therrespectivefiwheels: 27, 28 -so.--a's:ato .give .lwarious rates. of speed. From-Fig. -1- .it-will beapparent; that, one the cam 25 being turned. through .1809; the couplingwheel 211-Will be thrown out of engagement with its. coaxial .1 wheel27,- while the coupling wheelv 22 5 will .-be,- thrown .into. en-

gagement withits associated toothed-wheel 28- According; to the positionin.- which the cam 25 is turned: the various wheels shown in Fig. 3 will.beg-throwni intoorout. ofeng ement., m: ,5 2

: he motion of the-driven member. or rim .is reversed by throwingthetoothed wheel 30 into engagementwith the toothed-wheel 31.Rotary-motion is then transmitted from the wheel 19 to 21 and thencethrough- 30 and 31 to the internal teeth 29'so that .the

ring of internal teeth 29 revolves in'the same direction as the wheelmounted on the crank shaft. i

Although the invetnion is in the I form of a motor mounted in a vehiclewheel it will be apparent that man changes may be made without departingrom the scope of the invention; for theengine,.may also -beused fordriving; the driven members of 'a vehicle, aircraft orany conveyance bymeans of separate motiontransmittin'g gear as by chains, gear wheelsetc. moved by a driving wheel mounted on the revolving ca or'-the-engine-.:v V

'claimz? 1. In a machine of the kind described .a

wheel rim, engine cylindersifixedto the said ,rim, 2. crank shaft'infthe'mid dle of the said rim, pistons in the cylindersfor drivingthecrank shaft, a driving wheel .:normally loose on the crank shaft,-coupling means for coupling the driving wheel to the, crank shaft, andmotion transmitting wheels for transmitting motion fromthe :drivingwheel 2. In a m-achineof the kind described, a v

Wheel rim, internal combustion engine cylinders fixed to the said rim, acrank shaft in the middle of the said rim, pistons in the cylinders fordriving the crank shaft, a driving wheel normally loose on the crankshaft, valve control gear for the internal combustion engine, a seconddriving wheel permanently fixed on the crank shaft for driving the valvecontrol gear, coupling meansfor coupling the driving wheel to the crankshaft, and motion transmitting wheels for transmitting motion from thedriving wheel tothe said rim.

3. In a machine of the kind described a wheel rim, engine cylindersfixed to the said rim, a crank shaft in the middle of the said rim,pistons in the cylinders for driving the crank shaft, a driving Wheelnormally loose on the crank shaft, coupling means for coupling thedriving wheel to the crank shaft, and speed change motion transmittingwheels for transmitting motion from the 7 driving wheel to the said rim.

4. In a machine of the kind described, a frame, a wheel rim, internalcombustion engine cylinders fixed to the said rim, a crank shaft in themiddle of the said rim and journalled in the said frame, pistons in thecylinders for driving the crank shaft, a driving wheel normally loose onthe crank shaft, coupling means for coupling the driving wheel to thecrank shaft, and motion transmitting Wheels for transmitting motion fromthe driving wheel to the said rim, said motion transmitting wheels beingjournalled in the said frame.

5. In a machine of the kind described, a frame, a wheel rim, internalcombustion engine cylinders fixed to the said rim, a crank shaft in themiddle of the said rim and journalled in the said frame, pistons in thecylinders for driving the crank shaft, a driving wheel normally loose onthe crank shaft, valve control gear for the internal combustion engine,a second driving wheel permanently fixed on the crank shaft for drivingthe valve control gear, coupling means for coupling the driving wheel tothe crank shaft, and motion transmitting Wheels for transmitting motionfrom the driving wheel to the said rim, said motion transmitting Wheelsbeing journalled in the said frame.

In testimony whereof I aflix my signature in presence of a Witness.

EUGEN LUDWIG MULLER. Witness:

E. HOL'I'ZERMANN}

